Semi-truck



FIG. 1 is a front elevational view of a semi-truck showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a perspective view thereof; and,

FIG. 6 is another perspective view thereof. 

CLAIM The ornamental design for a semi-truck, as shown and described. 